code.grnet.gr Git - pithos/blob - src/gr/ebs/gss/server/rest/SearchHandler.java

   1 /*
   2  * Copyright 2008, 2009 Electronic Business Systems Ltd.
   3  *
   4  * This file is part of GSS.
   5  *
   6  * GSS is free software: you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation, either version 3 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * GSS is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with GSS.  If not, see <http://www.gnu.org/licenses/>.
  18  */
  19 package gr.ebs.gss.server.rest;
  20
  21 import gr.ebs.gss.client.exceptions.ObjectNotFoundException;
  22 import gr.ebs.gss.client.exceptions.RpcException;
  23 import gr.ebs.gss.server.domain.User;
  24 import gr.ebs.gss.server.domain.dto.FileHeaderDTO;
  25
  26 import java.io.IOException;
  27 import java.net.URLDecoder;
  28 import java.net.URLEncoder;
  29 import java.util.List;
  30
  31 import javax.servlet.http.HttpServletRequest;
  32 import javax.servlet.http.HttpServletResponse;
  33
  34 import org.apache.commons.logging.Log;
  35 import org.apache.commons.logging.LogFactory;
  36 import org.json.JSONArray;
  37 import org.json.JSONException;
  38 import org.json.JSONObject;
  39
  40
  41 /**
  42  * A class that handles operations on the 'search' namespace.
  43  *
  44  * @author past
  45  */
  46 public class SearchHandler extends RequestHandler {
  47         /**
  48          * The logger.
  49          */
  50         private static Log logger = LogFactory.getLog(SearchHandler.class);
  51
  52         /**
  53      * Serve the 'search' namespace that contains results in queries to find files.
  54      *
  55      * @param req The servlet request we are processing
  56      * @param resp The servlet response we are processing
  57      * @throws IOException if an input/output error occurs
  58          */
  59         void serveSearchResults(HttpServletRequest req, HttpServletResponse resp) throws IOException {
  60         String path = getInnerPath(req, PATH_SEARCH);
  61                 if (path.equals(""))
  62                         path = "/";
  63
  64         if (!path.equals("/"))
  65                         try {
  66                         User user = getUser(req);
  67                         JSONArray json = new JSONArray();
  68
  69                                 List<FileHeaderDTO> fileHeaders = getService().searchFiles(user.getId(), URLDecoder.decode(path.substring(1), "UTF-8"));
  70                 for (FileHeaderDTO f: fileHeaders) {
  71                         JSONObject j = new JSONObject();
  72                                 j.put("name", f.getName()).
  73                                         put("owner", f.getOwner().getUsername()).
  74                                         put("deleted", f.isDeleted()).
  75                                         put("version", f.getVersion()).
  76                                         put("size", f.getFileSize()).
  77                                         put("path", f.getFolder().getPath()).
  78                                         put("creationDate", f.getAuditInfo().getCreationDate().getTime()).
  79                                         put("modificationDate", f.getAuditInfo().getModificationDate().getTime()).
  80                                         put("uri", getApiRoot() + f.getURI());
  81                                 JSONObject jf = new JSONObject();
  82                                 jf.put("uri", getApiRoot() + f.getFolder().getURI()).
  83                                                 put("name", URLEncoder.encode(f.getFolder().getName(),"UTF-8"));
  84                                 j.put("folder", jf);
  85                                 json.put(j);
  86                 }
  87                 sendJson(req, resp, json.toString());
  88                 } catch (ObjectNotFoundException e) {
  89                         logger.error("User not found or search query not specified", e);
  90                         resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
  91                         return;
  92                 } catch (RpcException e) {
  93                         logger.error("", e);
  94                         resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
  95                         return;
  96                         } catch (JSONException e) {
  97                                 logger.error("", e);
  98                                 resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
  99                         }
 100                 else {
 101                         resp.sendError(HttpServletResponse.SC_NOT_FOUND, "No search query found");
 102                         return;
 103         }
 104         }
 105
 106 }